Two no blindbag sets have popped up on Toywiz. This one looks to include some of the new alicorn models, though right now we only have the single image from the side for each of them. The release date is slated for November.
I am not too sure where these came from, considering the technical next in line was yellow, but Hasbro works in mysterious ways, so I guess we will find out soon!
The green one can be found here, and the purple here!
Thanks to Vlad for the infos!